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Topic: What is MCU STC15L204 Wireless Development Board? (Read 13269 times) previous topic - next topic

nebulae

Hi there!
I was searching for NRF24L01 transceiver and found MCU STC15F204 Wireless Development Board + NRF24L01+ Wireless Serial Module. What is STC15F204 for?

Google is not giving me proper results.

http://www.ebay.com/itm/MCU-STC15F204-Wireless-Development-Board-NRF24L01-Wireless-Serial-Module-/310739126148?pt=LH_DefaultDomain_0&hash=item48597ec784

Thanks!

Riva

The STC15L204 is converting the NRF24L01+ wireless to/from a UART serial data.
Don't PM me for help as I will ignore it.

nebulae

#2
Jul 26, 2014, 06:51 pm Last Edit: Jul 26, 2014, 10:02 pm by nebulae Reason: 1
Thank you for your response.

What is it used for? Trivial question, but can it receive/transmit data from different transceivers? I mean,  e.g. one master station receives data from other slave stations simultaneously. Actually I would like to create a online data monitoring system to receive data from various places wirelessly. Over the project want to learn related things that can be useful.

I am newbie, so have a trouble understanding the use of this UART device.

Riva


What is it used for? Trivial question, but can it receive/transmit data from different transceivers? I mean,  e.g. one master station receives data from other slave stations simultaneously.
Not simultaneously in the literal sense but I think you can have several of these all talking to each other or a central device.

Actually I would like to create a online data monitoring system to receive data from various places wirelessly. Over the project want to learn related things that can be useful.
There are several tutorials on using these transceivers if you search...
http://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo
http://forum.arduino.cc/index.php?topic=138663.0
http://maniacbug.wordpress.com/2011/11/02/getting-started-rf24/
to name a few.


I am newbie, so have a trouble understanding the use of this UART device.
You probably don't need the extra bit that converts the wireless data to Serial (UART) so this will make it a bit cheaper. you only need this to send/receive radio signals. (I have no affiliation to the eBay site, it was just the first one I found.)
Don't PM me for help as I will ignore it.

nebulae

Very helpful feedback. Everything that I need. Thanks!

Could you also explain what STC15L204 used for? I mean as a UART device. I'm really curious about it. On the internet I didn't found someone that used this module.

Riva


Could you also explain what STC15L204 used for? I mean as a UART device. I'm really curious about it. On the internet I didn't found someone that used this module.

It just converts the SPI data the NRF24L01 interface uses into serial (UART) data.
Don't PM me for help as I will ignore it.

danix13

#6
Sep 04, 2014, 09:14 pm Last Edit: Sep 04, 2014, 09:16 pm by danix13 Reason: 1
SPI to UART.. that is somewhat clear. However how one is setting up the nRF2401L module? Frequency, channel, packet size etc.. Is there a "language" similar to the AT commands that are doing that? I was about to jump in and buy couple of these modules however there is absolutely no documentation (ZERO) on the internet about them. Anybody with a link ? A datasheet?

Freddrup

So, if the STC15L204 is a SPI to uART converter for the nRF24L01, can we use this module like a classic uART device, with commands like "Serial.print", "Serial.println", "Serial.write", ... ?

Thanks !!!
Frédéric Druppel
Contact : freddruppel@gmail.com

uCHobby

I have one of these and did a quick hunt for some details.  Not much out there but there is some source code..  Here are the links I found

Shows the board as if you can order it here

Some details including source code and schematic here Also shows it as a retired product.

Hope this helps...
uCHobby: Hobby Microcontrollers

tochinet

One small correction : The STF15F204 is not a "SPI to UART" converter per se. It's a chinese microcontroller (like the ATmega), presumably with a 8051 core (unclear) and some additional low cost peripherals (ADC). So in its combination with the nRF24, it is _programmed_ to convert SPI to UART.

That's why there are also these (unused) P3.x or P1.x pins on the two sides of your pictures.

In another usage, it's programmed as a _very cheap_ real-time clock (google "Banggood digit clock" for example).

DrAzzy

It's UART not uART. Lowercase u in an abbreviation (particularly at the front) stands for "micro"; this is from units, where u (or the greek letter mu, which looks almost exactly like a u) is used for same, for example, a 1 microfarad capacitor will be marked 1 uF. But that's not what the U in UART stands for - it's Universal Asynchronous Receiver/Transmitter

And yeah, that board is a serial device, so you talk to it with commands over Serial, with serial.print() and the like. See the documentation from the manufacturer for details on what commands and baud rate.
ATTinyCore for x4/x5/x61/x7/x8/x41/1634/828/x313 megaTinyCore for the megaavr ATtinies - Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny breakouts, mosfets, awesome prototyping board in my store http://tindie.com/stores/DrAzzy

Virtualchronos

Can Someone Help Me to make It work ?

I've baught one too but I've got no result at all... The device made nothing so if anyone could help me ?

kfetro

Any other information? I would also like to know if there is a list of "text" commands (eg. AT commands for the ESP8266) to manage the NRF905 device using a serial port.


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